Chromatic Adaptation#

colour

`chromatic_adaptation`(XYZ, XYZ_w, XYZ_wr[, ...])	Adapt given stimulus from test viewing conditions to reference viewing conditions.
`CHROMATIC_ADAPTATION_METHODS`	Supported chromatic adaptation methods.
`VIEWING_CONDITIONS_CMCCAT2000`	Reference CMCCAT2000 chromatic adaptation model viewing conditions.

Dataset

colour

CHROMATIC_ADAPTATION_TRANSFORMS

Chromatic adaptation transforms.

Fairchild (1990)#

colour.adaptation

chromatic_adaptation_Fairchild1990(XYZ_1, ...)

Adapt given stimulus CIE XYZ_1 tristimulus values from test viewing conditions to reference viewing conditions using Fairchild (1990) chromatic adaptation model.

Fairchild (2020)#

colour.adaptation

`CONDITIONS_DEGREE_OF_ADAPTATION_VK20`	Conditions for the Von Kries 2020 (vK20) degree of adaptation coefficients.
`matrix_chromatic_adaptation_vk20`(XYZ_p, XYZ_n)	Compute the chromatic adaptation matrix from previous viewing conditions to adapting viewing conditions using Von Kries 2020 (vK20) method.
`chromatic_adaptation_vK20`(XYZ, XYZ_p, XYZ_n)	Adapt given stimulus from previous viewing conditions to adapting viewing conditions using Von Kries 2020 (vK20) method.

CIE 1994#

colour.adaptation

chromatic_adaptation_CIE1994(XYZ_1, xy_o1, ...)

Adapt given stimulus CIE XYZ_1 tristimulus values from test viewing conditions to reference viewing conditions using CIE 1994 chromatic adaptation model.

CMCCAT2000#

colour.adaptation

`chromatic_adaptation_CMCCAT2000`(XYZ, XYZ_w, ...)	Adapt given stimulus CIE XYZ tristimulus values using given viewing conditions.
`VIEWING_CONDITIONS_CMCCAT2000`	Reference CMCCAT2000 chromatic adaptation model viewing conditions.

Ancillary Objects

colour.adaptation

`chromatic_adaptation_forward_CMCCAT2000`(XYZ, ...)	Adapt given stimulus CIE XYZ tristimulus values from test viewing conditions to reference viewing conditions using CMCCAT2000 forward chromatic adaptation model.
`chromatic_adaptation_inverse_CMCCAT2000`(...)	Adapt given stimulus corresponding colour CIE XYZ tristimulus values from reference viewing conditions to test viewing conditions using CMCCAT2000 inverse chromatic adaptation model.
`InductionFactors_CMCCAT2000`(F)	CMCCAT2000 chromatic adaptation model induction factors.

Von Kries#

colour.adaptation

`chromatic_adaptation_VonKries`(XYZ, XYZ_w, XYZ_wr)	Adapt given stimulus from test viewing conditions to reference viewing conditions.
`CHROMATIC_ADAPTATION_TRANSFORMS`	Chromatic adaptation transforms.

Dataset

colour.adaptation

`CAT_BRADFORD`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_BIANCO2010`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_PC_BIANCO2010`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_CAT02_BRILL2008`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_CAT02`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_CAT16`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_CMCCAT2000`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_CMCCAT97`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_FAIRCHILD`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_SHARP`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_VON_KRIES`	ndarray(shape, dtype=float, buffer=None, offset=0,
`CAT_XYZ_SCALING`	ndarray(shape, dtype=float, buffer=None, offset=0,

Ancillary Objects

colour.adaptation

matrix_chromatic_adaptation_VonKries(XYZ_w, ...)

Compute the chromatic adaptation matrix from test viewing conditions to reference viewing conditions.

Zhai and Luo (2018)#

colour.adaptation

chromatic_adaptation_Zhai2018(XYZ_b, XYZ_wb, ...)

Adapt given sample colour \(XYZ_{\beta}\) tristimulus values from input viewing conditions under \(\beta\) illuminant to output viewing conditions under \(\delta\) illuminant using Zhai and Luo (2018) chromatic adaptation model.